INFLUENCE OF CERTAIN AGRICULTURAL PRACTICES ON POPULATION DYNAMICS OF Helicoverpa (heliothis) Armigera AND Chrysodeixis Chalcites.
Salama,, R., El-Shazly, E., Abdel-Wahab, I., Ibrahim, S. (2007). INFLUENCE OF CERTAIN AGRICULTURAL PRACTICES ON POPULATION DYNAMICS OF Helicoverpa (heliothis) Armigera AND Chrysodeixis Chalcites.. EKB Journal Management System, 32(4), 3045-3054. doi: 10.21608/jppp.2007.219488
R. Salama,; E. A. El-Shazly; I. S. Abdel-Wahab; S. S. Ibrahim. "INFLUENCE OF CERTAIN AGRICULTURAL PRACTICES ON POPULATION DYNAMICS OF Helicoverpa (heliothis) Armigera AND Chrysodeixis Chalcites.". EKB Journal Management System, 32, 4, 2007, 3045-3054. doi: 10.21608/jppp.2007.219488
Salama,, R., El-Shazly, E., Abdel-Wahab, I., Ibrahim, S. (2007). 'INFLUENCE OF CERTAIN AGRICULTURAL PRACTICES ON POPULATION DYNAMICS OF Helicoverpa (heliothis) Armigera AND Chrysodeixis Chalcites.', EKB Journal Management System, 32(4), pp. 3045-3054. doi: 10.21608/jppp.2007.219488
Salama,, R., El-Shazly, E., Abdel-Wahab, I., Ibrahim, S. INFLUENCE OF CERTAIN AGRICULTURAL PRACTICES ON POPULATION DYNAMICS OF Helicoverpa (heliothis) Armigera AND Chrysodeixis Chalcites.. EKB Journal Management System, 2007; 32(4): 3045-3054. doi: 10.21608/jppp.2007.219488

INFLUENCE OF CERTAIN AGRICULTURAL PRACTICES ON POPULATION DYNAMICS OF Helicoverpa (heliothis) Armigera AND Chrysodeixis Chalcites.

Journal of Plant Protection and Pathology
Article 4, Volume 32, Issue 4, April 2007, Page 3045-3054  XML PDF (566.72 K)
Document Type: Original Article
DOI: 10.21608/jppp.2007.219488
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Authors
R. Salama,1; E. A. El-Shazly1; I. S. Abdel-Wahab2; S. S. Ibrahim2
1Department of Economic Entomology and Pesticides, Faculty of Agric., Cairo Univ. Giza, Egypt.
2Plant Protection Research Institute, Agricultural Research Center. Dokki, Giza, Egypt.
Abstract
The present investigation was carried out to study the efficiencies of agricultural  practices i.e. planting dates and tomato varieties on the population dynamics of tomato fruit worm, Helicoverpa armigera and tomato semilooper worm, Chrysodeixis chalcites at Kaha Research Station, El-Kalyoubia governorate during two successive seasons 2005 and 2006 where the results clearly showed a few number of eggs and larvae of H. armigera and C. chalcites in all tomatoes plantations. The abundance of H. armigera was relatively higher in the second season (2005/2006) than in the first season (2004/2005). The 3rd planting date (15 September) had the lowest incidence of H. armigera and gave the greatest yields in both studing seasons.
TH 348 variety showed the lowest population of both worms H. armigera and C. chalcites and gave the greatest yields.        
Keywords
Helicoverpa armigera; Chrysodeixis chalcites; population dynamics; agricultural practices
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